I figured this all out today in chemistry class...(this is after jeremiah joins zero)
C2- Queen- i mean...duh, she is by his side, and has the power to do anything but lets other do it
Bishop1: rollo- he is lelouch's protector
Bishop2: sayoko - lelouches double
Kinght1: Kallen/Guran Mark- at this point she is basically as strong as the knight of 1 so yeah she is cool
Knight2: Tohdo and holy swords- probably equal to knights of the round (possibly)
rook1: jeremiah- badass and useful
rook2:veletta- if she isnt being a traitor she is pretty helpful
and for the other side!
King of Britania: King
V2: (taken) queen (well...you get it)- basically like C2
bishop1: Nunnally- as in she is protective from zero for the king, not in actual fighting ability
knight1: Kinight of 1
Knight2: Suzaku/ knights of the round- suzaku is supposedly the best one, so he gets the title, and they are like pawns or something
rook1: Guilford (after cornelia quits)(taken)- before zero messes him up he is good ass general
rook2: Cornelia (taken peice)- really good at fighting, too bad she quit!